Lower Thermostat Housing for MerCruiser GM (Chevy) Big Block 7.4-Liter, 454 and 502 cu.in. engines - MC-29-90736:
MERCRUISER V8 MODELS 330, 340 and 454 MAGNUM
Inboard and Stern-Drive Units
CENTER RISER DIRECT REPLACEMENT
- Lower thermostat housing.
- BARR MC-29-90736 Replaces Mercruiser Design #1 Lower Thermostat Housing Only.
- For Mercruiser GM (Chevy) Big Block 7.4-Liter, 454 and 502 cu.in. engines.
- Replaces Mercruiser part #'s 90736A4 and 90736A18.
- Replaces OSCO # MC552-BB.
- Cross Reference: OSCMC552-BB 90736A18 90736A4 90736A23
- Made in USA